No idea about the tutorial, but yes it worked fine. Except that all the .fxe's and firmware, and in fact, absolutely everything (possibly including commercial games, which could be an arse) required patching in order to work with the new chip. Whether they worked but didn't recognise the ram beyond 8 megs, or whether they just plain died, I don't know, though...
hmm thanks for the info
i translated a bit off gp32spain and the ram upgrade mod and anarchy talked about rking on it, perhaps some emus will allow it in some time then i will try it.